13772057173 has 4 divisors (see below), whose sum is σ = 15739493920. Its totient is φ = 11804620428.

The previous prime is 13772057149. The next prime is 13772057177. The reversal of 13772057173 is 37175027731.

13772057173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37175027731 = 1451 ⋅25620281.

It is a cyclic number.

It is not a de Polignac number, because 13772057173 - 2²⁵ = 13738502741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13772057177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983718363 + ... + 983718376.

It is an arithmetic number, because the mean of its divisors is an integer number (3934873480).

Almost surely, 2^13772057173 is an apocalyptic number.

It is an amenable number.

13772057173 is a deficient number, since it is larger than the sum of its proper divisors (1967436747).

13772057173 is an equidigital number, since it uses as much as digits as its factorization.

13772057173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967436746.

The product of its (nonzero) digits is 216090, while the sum is 43.

The spelling of 13772057173 in words is "thirteen billion, seven hundred seventy-two million, fifty-seven thousand, one hundred seventy-three".